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Not a bad thought. I tend to forget the confusion a car-enthusiast newbie has when seeing all the different brands and model names, with no clue how the interior is designed.

I noticed the OP doesn't have info on Corsa mufflers. Not that most GMNers can afford them, but their broadband sound cancellation seems like a really nifty design. And of course brands like Spintech are very popular with racing types and employ yet another variation on the weld-baffles-in-a-clever-arrangement core.

I'd also suggest looking for info on Walker QuetFlows for those who might want a more stockish sound level (not that we know any of those types ... ).

Something that might be useful is getting a list of what mufflers are "clones" of ones on this list.

For instance, Thrush Welded mufflers are just Flowmaster 2-chambers with very minor tweeks.

actually thrush welded mufflers(debut in 1966) where out before the flowmasters[debut in 1983) 2 chamber mufflers. Flowmaster copied thrush and sold it for double the price. but thrush welded are the originals.

I have slp lm1's on my car. They sound wicked nasty and flow a ton. But they are not technically mufflers, more like resonators/expansion chambers. But I love them. Though at times I have considered going to the dynomax super turbo to quiet it down some, the slp's get a little over bearing on long trips.

....I'd also suggest looking for info on Walker QuetFlows for those who might want a more stockish sound level (not that we know any of those types ... ).

Do they make these in 2.5" sizes? If I ever replace both of the Summit welded muffs, I might consider these. I'm not sure what caused my Summit muff to fail, but I probably won't use them if I have to re-install the exhaust.

Do they make these in 2.5" sizes? If I ever replace both of the Summit welded muffs, I might consider these. I'm not sure what caused my Summit muff to fail, but I probably won't use them if I have to re-install the exhaust.

Packman

I did find a 2.5" offset/offset in the Walker catalog. It's for some '90-ish Cadillac single exhaust application. I've got the PN posted somewhere - I think. If not, I can get it from the catalog again. They're expensiveish (~$95 IIRC), but no more so than many popular "performance" mufflers. Was thinking of getting some when the Super Turbos showed up on closeout at Rock Auto for something crazy like $27 each - and helped me verify that my resonance problem is almost entirely in the pipes.